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Elastic expansion sleeve suitable for engine crankshaft damping pulley dynamic balance fixture

An engine and crankshaft technology, applied in the field of elastic expansion sleeves, can solve the problems of inaccurate dynamic balance data, low pulley positioning accuracy, low detection efficiency, etc., and achieve the effects of improving positioning accuracy, improving one-time pass rate, and improving efficiency.

Inactive Publication Date: 2017-12-15
WUHU JINYUAN MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The checking tool currently used for the dynamic balance detection of the crankshaft damping pulley has low positioning accuracy for the pulley, and the product will loosen when rotating at high speed, resulting in inaccurate dynamic balance data and low detection efficiency.

Method used

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  • Elastic expansion sleeve suitable for engine crankshaft damping pulley dynamic balance fixture
  • Elastic expansion sleeve suitable for engine crankshaft damping pulley dynamic balance fixture
  • Elastic expansion sleeve suitable for engine crankshaft damping pulley dynamic balance fixture

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Embodiment Construction

[0022] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

[0023] Such as figure 1 As shown, it is a kind of engine crankshaft damping pulley dynamic balance fixture with the elastic expansion sleeve 2 of the present invention, which includes the elastic expansion sleeve 2 of the present invention, inserted in the elastic expansion sleeve 2 and used to expand the elastic expansion sleeve 2 The opened balance expansion core 3 and the force application component used to generate the force that makes the elastic expansion sleeve 2 move relative to the balance expansion core 3 when the elastic expansion sleeve 2 expands. The elastic expansion sleeve 2 is used...

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Abstract

The invention discloses an elastic expanding sleeve applicable to an engine crankshaft damping belt pulley dynamic balance fixture. The elastic expanding sleeve comprises an end cover, a plurality of expanding blocks connected with the end cover and uniformly arranged in the circumferential direction, first sectioning gaps located between every two adjacent expanding blocks and second sectioning gaps formed in the expanding blocks and located between every two adjacent first sectioning gaps. The elastic expanding sleeve applicable to the engine crankshaft damping belt pulley dynamic balance fixture is good in elasticity. The upper end and the lower end of the elastic expanding sleeve can be evenly expanded and contracted. It is guaranteed that a damping belt pulley can be evenly expanded and fixed. The coaxiality of the damping belt pulley and the fixture is guaranteed. The positioning accuracy and the machining precision of the damping belt pulley are improved. The accuracy of dynamic balance data is guaranteed. The one-time qualified rate of products is increased. Meanwhile, the crankshaft damping belt pulley dynamic balance detection efficiency can also be improved, and the stability of production takt and balanced production is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of clamps, and in particular relates to an elastic expansion sleeve suitable for a dynamic balance clamp of an engine crankshaft damping pulley. Background technique [0002] The crankshaft damping pulley is a high-speed rotating part installed on the front end of the crankshaft of the automobile engine, and the dynamic balance performance of this product is extremely high. [0003] The checking tool currently used for the dynamic balance detection of the crankshaft damping pulley has low positioning accuracy for the pulley, and the product will loosen when rotating at high speed, resulting in inaccurate dynamic balance data and low detection efficiency. Contents of the invention [0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention provides an elastic expansion sleeve suitable for the dynamic balance fixture of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B31/40G01M1/02
CPCB23B31/4033G01M1/02
Inventor 陈云明胡先启
Owner WUHU JINYUAN MACHINERY MFG
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